Today auditors of the Roman Rota and some monsignors and canons wear the mantelletta. In former years it was also worn by auxiliaries and bishops where they had no jurisdiction.
Some of us hope for a return of the mantelletta for all bishops. The growing critique is that the intellectuality behind the decisions to abolish a lot of this color was detached from rock-bottom principles of lessons learned in the past. In other words, there was a reason behind the use of the mantelletta. Like the old adage reads: before you take down a fence first ask why it was put up.